import time
import datetime

from flask import render_template, request, current_app, redirect, url_for, session, g
from flask.json import jsonify

from info import constants, db
from info.models import User, News, Category
from info.utils.common import user_login_data
from info.utils.image_storage import storage
from info.utils.response_code import RET
from . import admin_blu


@admin_blu.route('/index')
@user_login_data
def admin_index():
    user = g.user
    if not user:
        # 没有登录就去登录页面
        return redirect(url_for('.admin_login'))

    # if user.is_admin

    return render_template('admin/index.html', user=user.to_dict())


@admin_blu.route('/login', methods=['POST', "GET"])
def admin_login():
    if request.method == 'GET':
        user_id = session.get('user_id')
        is_admin = session.get('is_admin', False)
        # 如果用户已经登录　　并且是管理员　
        if user_id and is_admin:
            return redirect(url_for('.admin_index'))

        return render_template('admin/login.html')

    # 登录逻辑

    username = request.form.get("username")
    password = request.form.get("password")
    if not all([username, password]):
        return render_template('admin/login.html', errmsg="参数不足")

    try:
        user = User.query.filter(User.mobile == username).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html', errmsg="数据查询失败")

    if not user:
        return render_template('admin/login.html', errmsg="用户不存在")

    # 验证密码
    if not user.check_password(password):
        return render_template('admin/login.html', errmsg="密码错误")

    # 验证是不是管理员　
    if not user.is_admin:
        return render_template('admin/login.html', errmsg="用户没有权限")

    # 存放用户登录的状态

    session["user_id"] = user.id
    session["mobile"] = user.mobile
    session["nick_name"] = user.nick_name
    session["is_admin"] = user.is_admin

    return redirect(url_for('.admin_index'))


@admin_blu.route('/user_count')
def user_count():
    # 查询总人数 不包括管理员
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)

    # 月新增人数
    mon_count = 0
    try:
        now = time.localtime()
        # 2019-06-12 23:20:31
        mon_begin = '%d-%02d-01' % (now.tm_year, now.tm_mon)
        # 把datatime类型转为字符串
        # datetime.strftime()
        # 把字符串转为datatime类型
        mon_begin_date = datetime.datetime.strptime(mon_begin, '%Y-%m-%d')  # 2019-06-01 00:00:00

        mon_count = User.query.filter(User.is_admin == False, User.create_time > mon_begin_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 当日用户
    day_count = 0
    try:
        day_begin = '%d-%02d-%02d' % (now.tm_year, now.tm_mon, now.tm_mday)
        day_begin_date = datetime.datetime.strptime(day_begin, '%Y-%m-%d')  # 2019-06-12 00:00:00
        day_count = User.query.filter(User.is_admin == False, User.create_time > day_begin_date).count()
    except Exception as e:
        current_app.logger.error(e)

    active_date = []  # 存放31天的日期
    active_count = []  # 存放每天的登录人数

    # 当天的时间的 00:00:00
    now_date = datetime.datetime.strptime(datetime.datetime.now().strftime('%Y-%m-%d'), '%Y-%m-%d')
    # 查询最近31天的数据
    for i in range(31):
        begin_date = now_date - datetime.timedelta(days=i)  # 每天的0点
        end_date = now_date - datetime.timedelta(days=(i - 1))  # 每天的24点
        # 每天的时间加入列表
        active_date.append(begin_date.strftime('%Y-%m-%d'))
        # 每天用户的登录的数量
        count = 0
        try:
            count = User.query.filter(User.is_admin == False, User.last_login >= begin_date,
                                      User.last_login < end_date).count()
        except Exception as e:
            current_app.logger.error(e)
        # 每天的登录人数加入列表
        active_count.append(count)

    print(active_date)
    print(active_count)

    data = {
        "total_count": total_count,
        "mon_count": mon_count,
        "day_count": day_count,
        'active_date': active_date,
        'active_count': active_count

    }
    return render_template('admin/user_count.html', data=data)


@admin_blu.route('/user_list')
def user_list():
    """获取用户列表"""
    # 获取参数
    page = request.args.get("p", 1)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    # 设置变量默认值
    users = []
    current_page = 1
    total_page = 1

    # 查询数据
    try:
        paginate = User.query.filter(User.is_admin == False).order_by(User.last_login.desc()).paginate(page,
                                                                                                       constants.ADMIN_USER_PAGE_MAX_COUNT,
                                                                                                       False)
        users = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    # 将模型列表转成字典列表
    users_list = []
    for user in users:
        users_list.append(user.to_admin_dict())

    data = {"total_page": total_page, "current_page": current_page, "users": users_list}
    return render_template('admin/user_list.html', data=data)


@admin_blu.route('/news_review')
def news_review():
    """返回待审核新闻列表"""

    page = request.args.get("p", 1)
    # 搜索的关键字
    keywords = request.args.get("keywords", '')
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    # 新闻列表
    news_list = []
    # 当前页
    current_page = 1
    # 全部页
    total_page = 1

    try:
        paginate = News.query.filter(News.title.contains(keywords)).order_by(News.create_time.desc()).paginate(page,
                                                                                                               constants.ADMIN_NEWS_PAGE_MAX_COUNT,
                                                                                                               False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_review_dict())

    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}

    return render_template('admin/news_review.html', data=context)


@admin_blu.route('/news_review_detail', methods=['POST', 'GET'])
def news_review_detail():
    if request.method == 'GET':
        # 获取新闻id
        news_id = request.args.get("news_id")
        if not news_id:
            return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

        # 通过id查询新闻
        news = None
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)

        if not news:
            return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

        # 返回数据
        data = {"news": news.to_dict()}
        return render_template('admin/news_review_detail.html', data=data)

    # 1.获取参数
    news_id = request.json.get("news_id")
    action = request.json.get("action")

    # 2.判断参数
    if not all([news_id, action]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    if action not in ("accept", "reject"):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    # 　 3查询新闻
    news: News = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="查询失败")

    # ４根据审核状态赋值
    if action == 'accept':
        news.status = 0
    else:
        reason = request.json.get("reason")
        if not reason:
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
        news.reason = reason
        news.status = -1

    # 保存到数据库
    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存失败")

    return jsonify(errno=RET.OK, errmsg="成功")


@admin_blu.route('/news_edit')
def news_edit():
    """返回新闻列表"""

    # 1接收 页数
    # 2 验证页数是否正确

    # 3 去数据库查询新闻列表
    # 当前页
    # 总页数

    # 把新闻对象数据转为字典数据

    page = request.args.get("p", 1)
    # 搜索的关键字
    keywords = request.args.get("keywords", '')
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1  # 当前页
    total_page = 1  # 总页数

    try:
        # 查询
        paginate = News.query.filter(News.title.contains(keywords)).order_by(News.create_time.desc()).paginate(page,
                                                                                                               constants.ADMIN_NEWS_PAGE_MAX_COUNT,
                                                                                                               False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    # 把新闻对象数据转为字典数据
    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_basic_dict())

    data = {"news_list": news_dict_list, 'current_page': current_page, 'total_page': total_page}

    return render_template('admin/news_edit.html', data=data)


@admin_blu.route('/news_edit_detail', methods=["GET", "POST"])
def news_edit_detail():
    """新闻编辑详情"""
    if request.method == 'GET':

        # 获取参数
        news_id = request.args.get("news_id")

        if not news_id:
            return render_template('admin/news_edit_detail.html', data={"errmsg": "未查询到此新闻1"})

        # 查询新闻
        news: News = None
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)

        if not news:
            return render_template('admin/news_edit_detail.html', data={"errmsg": "未查询到此新闻2"})

        # 查询分类信息
        categories = Category.query.all()
        categories_list = []
        for category in categories:
            c_dict = category.to_dict()
            c_dict['is_selected'] = False
            # 判断分类是不是当前 新闻的类别
            print(category.id, news.category_id)
            if category.id == news.category_id:
                c_dict['is_selected'] = True

            categories_list.append(c_dict)

        # 删除最新分类
        categories_list.pop(0)

        data = {"news": news, "categories": categories_list}
        return render_template('admin/news_edit_detail.html', data=data)

    news_id = request.form.get("news_id")
    title = request.form.get("title")
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")
    # 1.1 判断数据是否有值
    if not all([news_id, title, digest, content, category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    # 查询新闻的对象
    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="新闻查询错误")

    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到新闻数据")

    # 1.2上传图片 如果有
    if index_image:
        try:
            index_image = index_image.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="图片错误")

        try:
            key = storage(index_image)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.THIRDERR, errmsg="上传图片错误")

        news.index_image_url = constants.QINIU_DOMIN_PREFIX + key
    # 3. 设置相关数据
    news.title = title
    news.digest = digest
    news.content = content
    news.category_id = category_id

    # 4 保存到数据库
    try:
        db.session.commit()

    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存数据错误")
    # 5. 返回结果
    return jsonify(errno=RET.OK, errmsg="编辑成功")


@admin_blu.route('/news_category')
def get_news_category():
    # 获取所有的分类数据
    categories = Category.query.all()
    # 定义列表保存分类数据
    categories_dicts = []

    for category in categories:
        # 获取字典
        cate_dict = category.to_dict()
        # 拼接内容
        categories_dicts.append(cate_dict)

    categories_dicts.pop(0)
    # 返回内容
    return render_template('admin/news_type.html', data={"categories": categories_dicts})


@admin_blu.route('/add_category', methods=["POST"])
def add_category():
    """修改或者添加分类"""

    category_id = request.json.get("id")
    category_name = request.json.get("name")
    if not category_name:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    # 判断是否有分类id
    if category_id:
        try:
            category = Category.query.get(category_id)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.DBERR, errmsg="查询数据失败")

        if not category:
            return jsonify(errno=RET.NODATA, errmsg="未查询到分类信息")

        category.name = category_name
    else:
        # 如果没有分类id，则是添加分类
        category = Category()
        category.name = category_name
        db.session.add(category)

    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存数据失败")
    return jsonify(errno=RET.OK, errmsg="保存数据成功")
